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La fourniture de services d’approvisionnement en eau, d’assainissement et de traitement des eaux usées a des répercussions très favorables sur la santé publique, l’économie et l’environnement. Dans les pays en développement, le rapport avantages/coûts peut aller jusqu’à 7 pour 1 pour les services d’eau et d’assainissement de base. Les actions en matière de traitement des eaux usées, par exemple, peuvent s’accompagner d’effets très positifs en termes de santé publique et d’environnement, ainsi que pour certains secteurs économiques comme la pêche, le tourisme et le marché de l’immobilier. Les retombées favorables des services d’eau sont rarement considérées dans leur pleine mesure pour différentes raisons, notamment la difficulté de quantifier d’importants avantages non économiques tels que les valeurs de non-usage, la dignité, le statut social, la propreté et le bien-être général. Par ailleurs, les informations concernant les avantages liés aux services d’eau sont souvent enfouies dans des documents techniques et échappent aux principaux décideurs des ministères. Ce rapport réunit et résume les informations existantes sur les avantages de l’eau et de l’assainissement.

Sanitation -- Finance. --- Water resources development -- Finance. --- Business & Economics --- Agricultural Economics --- Water resources development --- Sanitation --- Finance. --- Cleanliness --- House drainage --- Sanitary affairs --- Sanitation services --- Sanitation systems --- Environmental health --- Hygiene --- Public health --- Sanitary engineering

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Organising Waste in the City takes a broad and international approach to the ways in which the issue of waste is framed, and brings together narratives from cities as diverse as Amsterdam, Bristol, Cairo, Gothenburg, Helsingborg and Managua.

Refuse and refuse disposal. --- Déchets --- Elimination --- Refuse and refuse disposal --- Urban sanitation --- Municipal sanitation --- Sanitation --- Discarded materials --- Disposal of refuse --- Garbage --- Household waste --- Household wastes --- Rubbish --- Solid waste management --- Trash --- Waste disposal --- Waste management --- Wastes, Household --- Factory and trade waste --- Pollution --- Pollution control industry --- Salvage (Waste, etc.) --- Street cleaning --- Waste products --- Environmental aspects. --- Déchets --- Urban sanitation. --- Environmental aspects

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Poor sanitation and open defecation are thought to be a major cause of diarrhea and intestinal parasite infections among young children. In 1999, India launched the Total Sanitation Campaign with the goal of achieving universal toilet coverage in rural India by 2012. This paper reports on a cluster-randomized, controlled trial that was conducted in 80 rural villages in Madhya Pradesh to measure the effect of the program on toilet access, sanitation behavior, and child health outcomes. The study analyzed a random sample of 3,039 households and 5,206 children under five years of age. Field staff collected baseline measures of sanitation conditions, behavior, and child health, and re-visited households 21 months later. The analysis finds that implementation of the program activities was slower than the original timeline (only 35 percent of villages were triggered more than six months before the follow-up survey). Nevertheless, the Total Sanitation Campaign successfully increased toilet coverage by 19 percent in intervention villages compared with control villages (41 percent volume 22 percent), while reported open defecation decreased by 10 percent among adults (74 percent volume 84 percent). The intervention also led to some improvements in water quality and protozoan infection, but consistent improvements were not observed across multiple child health outcomes (diarrhea, helminth infections, child growth). However, the exposure period was likely to have been too short to result in any benefit of the sanitation interventions on child health. Given the large improvements in toilet construction documented, an additional follow-up survey with a longer period of exposure would yield valuable information on the effects of improved sanitation conditions on health outcomes.

Anemia --- Diarrhea --- Growth --- Health Monitoring & Evaluation --- Height --- Housing & Human Habitats --- Hygiene Promotion and Social Marketing --- Impact Evaluation --- Macroeconomics and Economic Growth --- Madhya Pradesh --- Open Defecation --- Parasite Infection --- Randomized Controlled Trial --- Toilets --- Total Sanitation Campaign --- Town Water Supply and Sanitation --- Urban Water Supply and Sanitation --- Water Supply and Sanitation --- Weight

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Physical height is an important economic variable reflecting health and human capital. Puzzlingly, however, differences in average height across developing countries are not well explained by differences in wealth. In particular, children in India are shorter, on average, than children in Africa who are poorer, on average, a paradox called "the Asian enigma" which has received much attention from economists. This paper provides the first documentation of a quantitatively important gradient between child height and sanitation that can statistically explain a large fraction of international height differences. This association between sanitation and human capital is robustly stable, even after accounting for other heterogeneity, such as in GDP. The author applies three complementary empirical strategies to identify the association between sanitation and child height: country-level regressions across 140 country-years in 65 developing countries; within-country analysis of differences over time within Indian districts; and econometric decomposition of the India-Africa height differences in child-level data. Open defecation, which is exceptionally widespread in India, can account for much or all of the excess stunting in India.

Child height --- Disease Control & Prevention --- Early Child and Children's Health --- Econometric decomposition --- Economic well-being --- Fecal germs --- Health Monitoring & Evaluation --- Macroeconomics and Economic Growth --- Population Policies --- Sanitation coverage --- Water Supply and Sanitation --- Youth and Governance

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In large parts of the world, a lack of home tap water burdens households as the water must be brought to the house from outside, at great expense in terms of effort and time. This paper studies how such costs affect girls' schooling in Ghana, with an analysis based on four rounds of the Demographic and Health Surveys. Using Global Positioning System coordinates, it builds an artificial panel of clusters, identifying the closest neighbors within each round. The results indicate a significant negative relation between girls' school attendance and water hauling activity, as a halving of water fetching time increases girls' school attendance by 2.4 percentage points on average, with stronger impacts in rural communities. The results seem to be the first definitive documentation of such a relationship in Africa. They document some of the multiple and wide population benefits of increased tap water access, in Africa and elsewhere.

Energy --- Environment --- Girls' schooling --- Household water access --- Panel data --- Town Water Supply and Sanitation --- Water and Industry --- Water Conservation --- Water Supply and Sanitation Governance and Institutions --- Water Use --- Africa